Product Details | THERMAL INSULATION SLEEVING

5640-01-042-0973 A rigid or flexible item composed of one or more materials, having uniform inside and outside diameters in the entire length. It may be furnished in segments or split-round or full-round sections, composed of one or more layers. It is specifically designed to cover pipe, tubing, and like surfaces, to restrict the transfer of heat from the high temperature surface to the low temperature surface. It may also include protective coatings, jackets, attaching cement, attaching bands, and/or accessories, (excluding prefabricated components used in aircraft applications). Excludes INSULATION PIPE COVERING, THERMAL, AIRCRAFT.

Part Alternates: MILI2781, MIL-I-2781, 5640-01-042-0973, 01-042-0973, 5640010420973, 010420973

Construction and Building Materials | Wallboard, Building Paper, and Thermal Insulation Materials

Supply Group (FSG) NSN Assign. NIIN
56 06 JUN 1977 01-042-0973

Demand History | NSN 5640-01-042-0973

Part Number Request Date QTY Origin
MILI2781 2010-03-63 16 United States
MILI2781 2009-05-135 1 Colombia

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Technical Data | NSN 5640-01-042-0973

Characteristic Specifications
FLEXIBILITY RIGID
LAYER QUANTITY 1
MATERIAL CALCIUM SILICATE
FABRICATION METHOD MOLDED
MATERIAL DENSITY NOT RATED
FLAMMABILITY RATING SELF-EXTINGUISHING, FIRE RETARDANT
TEMP RATING 125.0 DEG FAHRENHEIT MINIMUM AND 338.0 DEG FAHRENHEIT MAXIMUM
INSULATION THICKNESS 1.500 INCHES NOMINAL
INSIDE DIAMETER 7.703 INCHES NOMINAL
LENGTH 36.000 INCHES NOMINAL
DESIGN FORM SPLIT ROUND
NONDEFINITIVE SPEC/STD DATA 7 IN. SIZE
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-I-2781

Restrictions/Controls & Freight Information | NSN 5640-01-042-0973

Category Code Description
Hazardous Material Indicator CodePThere is no information in the HMIS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information

Management | NSN 5640-01-042-0973

Category Code Description
Cognizance Codes9QNavy-owned stocks of items accepted by the General Services Administration for support of Navy requirements
Naval Inventory Control Point, Mechanicsburg
Source of SupplyGSAGeneral Services Administration
Washington, D.C. 20406
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesYTERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative